Don't expect anybody to offer Crowder the same money as Carroll, but the Aminu contract is probably in the neighborhood of what Boston will have to match in order to hang on to him. It also looks as if the Mavericks are regretting their decision to deal Crowder in the first place:

Boston and Dallas are leaders so far in pursuit of free agent forward Jae Crowder, league sources tell RealGM. Mavs dealt him last season.